What is CVE-2026-108266?

CVE-2026-108266 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. Privasys rustls fork: RA-TLS challenge mode did not bind attestation evidence to the TLS session

Which CVE IDs does CVE-2026-108266 cover?

CVE-2026-108266 covers the following CVE IDs: CVE-2026-108266. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-108266?

CVE-2026-108266 affects 3 products, including: azl3 kata-containers 4.1.0.kata0-1 on Azure Linux 3.0; azl3 rust 1.75.0-31 on Azure Linux 3.0; azl3 rust 1.96.1-2 on Azure Linux 3.0.

CVE-2026-108266Critical

Privasys rustls fork: RA-TLS challenge mode did not bind attestation evidence to the TLS session

Vendor

Microsoft Security Response Center (MSRC)

Published

October 13, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-108266 →

🎯 Affected products3

azl3 kata-containers 4.1.0.kata0-1 on Azure Linux 3.0
azl3 rust 1.75.0-31 on Azure Linux 3.0
azl3 rust 1.96.1-2 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108266
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade